On Mon, 27 Jan 2014, RobertMacy wrote:

This is a simple switched capacitor filter made by National. Would somebody
send me a copy, or at least provide a URL that HAS it!!! and not datasheet or
alldata crap! If AppNote available that too please.

Have you got the part number right? National's first generation filter
like that had some other prefix (I can't remember what, I'd know the minute I
saw it). I'm thinking "MFC" but I don't know why. It didn't start
with National's traditional prefix, "LM". Maybe later they used some other
prefix, but I'd double check.

Michael

I just went through the most frustrating 45 minutes trying to get a simple
!@#$#@!#$ data sheet! Google search shows 8,000+ pages of either alldata, or
datasheet, ok so tried going to both, all I got there were ads for unrelated
chips and ?? couldn't even tell, kept asking me to download a pdf viewer!!
what?!

So thought I'd go to the source [which I usually do first] went to
http://www.national.com which of course took me to http://www.ti.com
because TI bought out National and TI's website is usually pretty easy to
navigate so did a search for LMF90 only to come up with nothing found.

I'd like a URL ending in .pdf so I can click on it and select 'download the
contents of the link', instead of going off to some jave infected website
that either hangs, delays, my system or wants to give me videos, and no where
in sight is a place to get a copy of the datasheet. Even the 'view' data
sheet resulted in nothing happening!! arrrggg! ...temporary end of rant.

So, anybody have a copy, or know a 'good' URL?